| developer | eb15569 | 2024-01-11 14:08:37 +0800 | [diff] [blame] | 1 | From 08661908d4c2fb5f8d7ca00e0e7e6b33a6ae6e31 Mon Sep 17 00:00:00 2001 |
| 2 | From: StanleyYP Wang <StanleyYP.Wang@mediatek.com> |
| 3 | Date: Wed, 27 Dec 2023 14:26:22 +0800 |
| 4 | Subject: [PATCH] mac80211: mtk: send deauth frame if CAC is required during |
| 5 | CSA |
| 6 | |
| 7 | Signed-off-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com> |
| 8 | --- |
| 9 | net/mac80211/cfg.c | 27 +++++++++++++++++++++++++++ |
| 10 | 1 file changed, 27 insertions(+) |
| 11 | |
| 12 | diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c |
| 13 | index 3e6e903..eb73834 100644 |
| 14 | --- a/net/mac80211/cfg.c |
| 15 | +++ b/net/mac80211/cfg.c |
| 16 | @@ -3361,6 +3361,31 @@ static int ieee80211_start_radar_detection_post_csa(struct wiphy *wiphy, |
| 17 | return 1; |
| 18 | } |
| 19 | |
| 20 | +static void ieee80211_csa_send_deauth(struct ieee80211_sub_if_data *sdata) |
| 21 | +{ |
| 22 | + struct ieee80211_local *local = sdata->local; |
| 23 | + u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; |
| 24 | + u8 broadcast[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; |
| 25 | + bool send_deauth; |
| 26 | + |
| 27 | + send_deauth = !cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, |
| 28 | + &sdata->csa_chandef) && |
| 29 | + !cfg80211_reg_can_beacon_relax(local->hw.wiphy, |
| 30 | + &sdata->csa_chandef, |
| 31 | + sdata->wdev.iftype); |
| 32 | + /* broadcast deauth frame if CAC is required */ |
| 33 | + if (!send_deauth) |
| 34 | + return; |
| 35 | + |
| 36 | + ieee80211_wake_vif_queues(local, sdata, IEEE80211_QUEUE_STOP_REASON_CSA); |
| 37 | + ieee80211_send_deauth_disassoc(sdata, broadcast, |
| 38 | + sdata->vif.bss_conf.bssid, |
| 39 | + IEEE80211_STYPE_DEAUTH, |
| 40 | + WLAN_REASON_DEAUTH_LEAVING, |
| 41 | + send_deauth, frame_buf); |
| 42 | + ieee80211_stop_vif_queues(local, sdata, IEEE80211_QUEUE_STOP_REASON_CSA); |
| 43 | +} |
| 44 | + |
| 45 | static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) |
| 46 | { |
| 47 | struct ieee80211_local *local = sdata->local; |
| 48 | @@ -3371,6 +3396,8 @@ static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) |
| 49 | lockdep_assert_held(&local->mtx); |
| 50 | lockdep_assert_held(&local->chanctx_mtx); |
| 51 | |
| 52 | + ieee80211_csa_send_deauth(sdata); |
| 53 | + |
| 54 | /* |
| 55 | * using reservation isn't immediate as it may be deferred until later |
| 56 | * with multi-vif. once reservation is complete it will re-schedule the |
| 57 | -- |
| 58 | 2.18.0 |
| 59 | |